Ventilator device for poultry houses



July 13, 1943. v D. B. TOLLEY 2,324,043

' VENTILATQR DEVICE FOR POULTRY HOUSES Filed Nov. 21, 1941 PIE]. 3

INVENTOR.

2gb 3. 7704.452? BY fir v62;

Patented July 13, 1943 VENTILATOR DEVICE FOR POULTRY HOUSES Donald B.Tolley, Macomb, Ill., assignor to Globe American Corporation, Kokomo,Ind, a corporation Application November 21, 1941, Serial No. 419,826 3Claims. (01. 98- -88) This invention relates to a window ventilator forpoultry houses of the type adapted for inward positioning to direct thedraft of incoming air upwardly and inwardly toward the ceiling.

In windows of the type used for poultry houses, it is essential toprovide a structure of minimum resistance to air currents and soarranged as to prevent direct draft when opened upon the fowls. To thatend a housing is provided in conjunction with the window frame such thatthe window sash may be either completely closed in respect to the frameor may be pivotally mounted to swing inwardly about a lower axis toprovide a top opening such as will baffle the incoming air and direct itupwardly.

It is the purpose of this invention to provide the window sash with apivotally mounted shutter thereon which will be so actuated by windvelocity as to automatically control the draft when the window sash isin open position and freely permit complete or partial closing of thesash. Wherein the sash is only manually adjusted to control theventilation, variations in wind velocity cannot be taken into account,so that an adjustment which controls the ventilation at one period oftime will be entirely inadequate and unsuitable at another period oftime due to change in wind velocity. By means of this invention theshutter mounted on the sash will shift its position with the variationsin wind velocity, and thereby tend to reduce or close the opening as thewind velocity increases while increasing or completely freeing theopening as the wind velocity decreases. Thus, a substantially constantventilating draft is obtained thereby.

The full nature of the invention will be under stood from theaccompanying drawing and the following description and claims:

Fig. l is a perspective view of the window closure taken from theinterior of the building. Fig. 2 is a plan view looking down thereon.Fig. 3 is an enlarged central vertical section through the sash andframe with the shutter shown in closed position due to high windvelocity in full lines and in full open position due to low windvelocity in dotted lines.

In the drawing there is illustrated a window frame structure it, such asis commonly employed in poultry houses having a sash opening indicatedat il in which the window sash I2 is adapted to fit. The sash l2embodies and embraces the window glass IS. The frame includes a flangedmetal liner l4 to provide a seal for the window sash when closed, whichliner ineludes the sealing rib l5 and an upper resilient inwardlyextending sealing flange portion 16 that may serve as a window sashretainer.

Mounted'inwardly along each side of the window frame in side embracingrelation with the sash there is provided a sheet metal side guard Hflanged inwardly at l8 along its inner edge which extends inwardly andupwardly at an angle from the bottom of the frame, said flanged edge l8providing a seat for the window sash when in its open position.

Secured to each side of the window sash and near the top thereof thereis a pair of shutter supporting brackets I9 upon and between which theshutter 20 is pivotally mounted through the medium of the pivot pin 21extending therefrom. Said shutter is mounted to extend crosswise of thewindow sash and is so formed of sheet metal or the like as to swingabout its pivotal mounting from full open position, indicated in dottedlines in Fig. 3, to its closed position shown in full lines. However, inits closed position it does not entirely close the air passage betweenthe upper end of the sash and the frame, but leaves slight openingsadjacent same through which air may continue to pass. Its opposite edgesare so formed and the surface area on each side of the pivotal mountingis so related to the total area that it normally hangs in a verticalposition, as shown by dotted lines, when there is insufficient pressuredue to the absence of appreciable wind velocity to affect it. In thisposition it permits of maximum ventilating opening as required. However,due to the greater area of that portion of the shutter which is belowthe pivotal mounting in respect to that thereabove, pressure due to windvelocity being greater on the lower portion, will cause it to swingupwardly until the lower edge of the shutter strikes the sides of thesash, as shown in full lines. Note there then is an air relief channelbetween the shutter lower edge and the pane l3, and an opposite airrelief channel between the shutter upper edge and the sealing flange [6.

By means of this arrangement, when ventilation is desired within thepoultry house, the sash may be entirely opened by laying it back againstthe flanges l8 to baffle and direct the incoming air currents upwardly.Thereupon the shutter will control the extent of the opening and airpassage therethrough at the top of the window, depending upon the windvelocity so as to maintain a substantially constant air intake andventilating effect. It is important and to be noted that the window maybe readily closed since the shutter is so mounted thereon as to passthrough the window opening and, therefore, not interfere with theclosing movement of the sash. As a result of the above, no manualadjustment of the window sash is re quired to control the draft orextent of ventilation when there is a change or variation in Windvelocity.

The invention claimed is:

1. In a window ventilator for poultry houses including a window framehaving a window sash receiving opening therein, a window sash having itslower end supported in said opening and its upper end free to be swungto and from said opening, and guard plates secured to said frame on eachside of said opening and provided with sash seating flanges adapted tosupport said sash in its open position when th upper portion thereof isswung to open position from the frame, the combination of a pair ofbrackets secured on each side of said sash near the top thereof, andextending toward said opening in the frame and passing therethrough whenthe sash is frame seated, and a gravity stabilized velocity adjustabledraft controlled shutter extending crosswise of said sash andeccentrically pivoted upon said brackets, said shutter normally lying ina vertical position regardless of sash position and when not subject toappreciable wind velocity, said shutter and brackets both being passablethrough said opening without interference when said sash is moved toclosed position, the shutter, when fully closed and with the sash inopened position, providing two ventilating passages defined by saidshutter, sash, frame and plates.

2. A window ventilator as defined by claim 1 wherein means is providedat the top of the frame opening for yieldingly engaging the top of thesash for sealing and retaining same in closed position, and stop meansin the opening limiting sash movement in closed position.

3. In a window ventilator for poultry houses including a window framemember having a window sash receiving opening therein, a window sashmember having its lower end supported in said opening and its upper endfree to be swung therefrom for ventilation purposes, and side guardplates at each side of the opening, and including inwardly directed sashmember seating flanges adapted to support said sash member when in fullopen position relative to the frame member, the combination of a pair ofbrackets secured on each side of said sash member near the top thereofand extending toward the opening in the frame member and passingtherethrough when the sash member is moved to frame opening seatedposition, and a shutter vane pivotally supported by the outermost endsof said brackets and extending crosswise of said sash member andadjustable in the discharge opening provided between the frame member,sash member and side guard plates, said shutter adjacent its free endshaving angularly offset portions, the pivotal support being intermediatesaid angular portions, the free edge of one of the angular portionsbeing adapted to engage an adjacent member when the vane is in fullyclosed position, the vane and supporting brackets being passable throughthe window frame member opening upon sash member seating therein.

DONALD B. TOILEY.

